Evaluation of Early-Age Concrete Compressive Strength with Ultrasonic Sensors
Surface wave velocity measurement of concrete using ultrasonic sensors requires testing on only one side of a member. Thus, it is applicable to concrete cast inside a form and is often used to detect flaws and evaluate the compressive strength of hardened concrete. Predicting the in situ concrete st...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/17/8/1817 |
| _version_ | 1798003643108032512 |
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| author | Hyejin Yoon Young Jin Kim Hee Seok Kim Jun Won Kang Hyun-Moo Koh |
| author_facet | Hyejin Yoon Young Jin Kim Hee Seok Kim Jun Won Kang Hyun-Moo Koh |
| author_sort | Hyejin Yoon |
| collection | DOAJ |
| description | Surface wave velocity measurement of concrete using ultrasonic sensors requires testing on only one side of a member. Thus, it is applicable to concrete cast inside a form and is often used to detect flaws and evaluate the compressive strength of hardened concrete. Predicting the in situ concrete strength at a very early stage inside the form helps with determining the appropriate form removal time and reducing construction time and costs. In this paper, the feasibility of using surface wave velocities to predict the strength of in situ concrete inside the form at a very early stage was evaluated. Ultrasonic sensors were used to measure a series of surface waves for concrete inside a form in the first 24 h after placement. A continuous wavelet transform was used to compute the travel time of the propagating surface waves. The cylindrical compressive strength and penetration resistance tests were also performed during the test period. Four mixtures and five curing temperatures were used for the specimens. The surface wave velocity was confirmed to be applicable to estimating the concrete strength at a very early age in wall-like elements. An empirical formula is proposed for evaluating the early-age compressive strength of concrete considering the 95% prediction intervals. |
| first_indexed | 2024-04-11T12:11:02Z |
| format | Article |
| id | doaj.art-d9db5cc94b1946118f6490cc83344fae |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:11:02Z |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d9db5cc94b1946118f6490cc83344fae2022-12-22T04:24:37ZengMDPI AGSensors1424-82202017-08-01178181710.3390/s17081817s17081817Evaluation of Early-Age Concrete Compressive Strength with Ultrasonic SensorsHyejin Yoon0Young Jin Kim1Hee Seok Kim2Jun Won Kang3Hyun-Moo Koh4Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 10223, KoreaStructural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 10223, KoreaStructural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 10223, KoreaDepartment of Civil Engineering, Hongik University, 94 Wausan-ro, Mapo-gu, Seoul 04066, KoreaDepartment of Civil and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, KoreaSurface wave velocity measurement of concrete using ultrasonic sensors requires testing on only one side of a member. Thus, it is applicable to concrete cast inside a form and is often used to detect flaws and evaluate the compressive strength of hardened concrete. Predicting the in situ concrete strength at a very early stage inside the form helps with determining the appropriate form removal time and reducing construction time and costs. In this paper, the feasibility of using surface wave velocities to predict the strength of in situ concrete inside the form at a very early stage was evaluated. Ultrasonic sensors were used to measure a series of surface waves for concrete inside a form in the first 24 h after placement. A continuous wavelet transform was used to compute the travel time of the propagating surface waves. The cylindrical compressive strength and penetration resistance tests were also performed during the test period. Four mixtures and five curing temperatures were used for the specimens. The surface wave velocity was confirmed to be applicable to estimating the concrete strength at a very early age in wall-like elements. An empirical formula is proposed for evaluating the early-age compressive strength of concrete considering the 95% prediction intervals.https://www.mdpi.com/1424-8220/17/8/1817ultrasonic sensorssurface wave velocityearly-age concretecompressive strength |
| spellingShingle | Hyejin Yoon Young Jin Kim Hee Seok Kim Jun Won Kang Hyun-Moo Koh Evaluation of Early-Age Concrete Compressive Strength with Ultrasonic Sensors Sensors ultrasonic sensors surface wave velocity early-age concrete compressive strength |
| title | Evaluation of Early-Age Concrete Compressive Strength with Ultrasonic Sensors |
| title_full | Evaluation of Early-Age Concrete Compressive Strength with Ultrasonic Sensors |
| title_fullStr | Evaluation of Early-Age Concrete Compressive Strength with Ultrasonic Sensors |
| title_full_unstemmed | Evaluation of Early-Age Concrete Compressive Strength with Ultrasonic Sensors |
| title_short | Evaluation of Early-Age Concrete Compressive Strength with Ultrasonic Sensors |
| title_sort | evaluation of early age concrete compressive strength with ultrasonic sensors |
| topic | ultrasonic sensors surface wave velocity early-age concrete compressive strength |
| url | https://www.mdpi.com/1424-8220/17/8/1817 |
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